Note In Microsoft Visio, the following is the format that is used by each GUID:

{WXYYZZZZ-6D54-11D4-BEE3-00C04F990354}

The first eight characters of the GUID contain
information about the release type, edition type, store-keeping unit (SKU), and
language of the product. The remaining digits in the GUID (11D3-8CFE-...) do
not provide any easily categorizable information.

The GUIDs should be the first items that are listed under Uninstall, because their names start with braces.

Each GUID's
data pane contains multiple values, including the product name that appears in
the Add/Remove Programs dialog box (DisplayName), the date that the product was installed
(InstallDate), the product ID (Product ID), the installation source
(InstallSource), and the registered company and user name (RegCompany,
RegOwner).

Release type

The release type values specify the level of the release, for
example, Beta versus RTM. See the following table for details.

Language identifier

The language identifier, or LCID, varies from language to
language. Because the LCID is stored in the GUID in hexadecimal format, you may
need to convert it to decimal in order to determine the language of the GUID.
For example, 0409 hexadecimal is equivalent to 1033 decimal, which translates
to English.

Sample GUID

If the GUID starts with 90280407, you know that the GUID was
created by the initial released version (9) of an Enterprise edition (0) of
Microsoft Office XP Professional with FrontPage (28), and that the language of
the product is German (0407 hexadecimal = 1031 decimal = German).